.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    z-index: var(--z-sticky);
    transition: background var(--transition-base), box-shadow var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: var(--color-bg-primary);
    box-shadow: var(--shadow-md);
}

.navbar.solid {
    background: var(--color-bg-primary);
    box-shadow: var(--shadow-sm);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.navbar-logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.navbar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.navbar-brand-name {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.navbar-brand-tagline {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.navbar-nav {
    display: none;
    align-items: center;
    gap: var(--space-1);
}

@media (min-width: 1024px) {
    .navbar-nav {
        display: flex;
    }
}

.nav-link {
    padding: 0.5rem 0.875rem;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(45, 122, 58, 0.08);
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-dropdown-toggle .chevron {
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    min-width: 220px;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(-6px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    border: 1px solid var(--color-gray-200);
    z-index: 10;
}

.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}

.nav-dropdown.open .nav-dropdown-menu {
    opacity: 1;
    pointer-events: all;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown.open .chevron {
    transform: rotate(180deg);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0.625rem var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-dropdown-item:hover {
    background: rgba(45, 122, 58, 0.08);
    color: var(--color-primary);
}

.nav-dropdown-item .icon {
    font-size: 1rem;
    width: 24px;
    text-align: center;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

.theme-toggle:hover {
    background: var(--color-gray-200);
    color: var(--color-primary);
}

.navbar-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    padding: 4px;
    border: none;
    background: none;
}

@media (min-width: 1024px) {
    .navbar-toggle {
        display: none;
    }
}

.navbar-toggle span {
    display: block;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

.navbar-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-bg-primary);
    box-shadow: var(--shadow-xl);
    padding: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: calc(var(--z-sticky) - 1);
    max-height: calc(100vh - var(--navbar-height));
    overflow-y: auto;
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
}

@media (min-width: 1024px) {
    .mobile-menu {
        display: none;
    }
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: rgba(45, 122, 58, 0.08);
    color: var(--color-primary);
}

.mobile-nav-section {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

.mobile-projects-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.mobile-projects-toggle:hover {
    background: rgba(45, 122, 58, 0.08);
    color: var(--color-primary);
}

.mobile-projects-toggle .chevron {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.mobile-projects-toggle.open .chevron {
    transform: rotate(180deg);
}

.mobile-projects-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: var(--space-4);
}

.mobile-projects-list.open {
    max-height: 400px;
}

.mobile-menu-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: var(--space-3) 0;
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.navbar:not(.scrolled):not(.solid) .navbar-brand-name {
    color: white;
}

.navbar:not(.scrolled):not(.solid) .navbar-brand-tagline {
    color: rgba(255, 255, 255, 0.7);
}

.navbar:not(.scrolled):not(.solid) .nav-link {
    color: rgba(255, 255, 255, 0.85);
}

.navbar:not(.scrolled):not(.solid) .nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.navbar:not(.scrolled):not(.solid) .nav-link.active {
    color: white;
}

.navbar:not(.scrolled):not(.solid) .nav-link.active::after {
    background: white;
}

.navbar:not(.scrolled):not(.solid) .theme-toggle {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.navbar:not(.scrolled):not(.solid) .navbar-toggle span {
    background: white;
}